JPS599355Y2 - Fire alarm terminal test equipment - Google Patents
Fire alarm terminal test equipmentInfo
- Publication number
- JPS599355Y2 JPS599355Y2 JP5062879U JP5062879U JPS599355Y2 JP S599355 Y2 JPS599355 Y2 JP S599355Y2 JP 5062879 U JP5062879 U JP 5062879U JP 5062879 U JP5062879 U JP 5062879U JP S599355 Y2 JPS599355 Y2 JP S599355Y2
- Authority
- JP
- Japan
- Prior art keywords
- terminator
- transistor
- voltage
- fire alarm
- light emitting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Landscapes
- Alarm Systems (AREA)
- Fire Alarms (AREA)
Description
【考案の詳細な説明】
本考案は火災報知機の配線の有無を調べるために配線の
終端に接続する終端器の試験装置に関するもので、終端
器１を接続する試験端子２，２を設け、終端器１のツエ
ナー電圧より高い電圧の直流電源３に発光素子４，５と
トランジスタ６，７の直列回路を２組並列に接続し、前
記終端器１を介して接続された２組の分圧回路８，９を
トランジスタ６，７のベースにそれぞれ接続するととも
に一方のトランジスタ６のコレクタを他方のトランジス
タ７のベースに接続して或る火災報知機の終端器試験装
置に係るものである。[Detailed Description of the Invention] The present invention relates to a test device for a terminator connected to the end of a wire in order to check the presence or absence of fire alarm wiring. Two sets of series circuits of light emitting elements 4 and 5 and transistors 6 and 7 are connected in parallel to a DC power supply 3 whose voltage is higher than the Zener voltage of the terminator 1, and the two sets of voltage dividers are connected via the terminator 1. The circuits 8 and 9 are connected to the bases of transistors 6 and 7, respectively, and the collector of one transistor 6 is connected to the base of the other transistor 7, thereby relating to a terminal device testing device for a certain fire alarm.
本考案の目的とするところは、火災報知機の竣工時、保
守点検時等に終端器のチェックを簡単にできるようにし
て配線の断線か、終端器の不良かを即時に判るようにす
ることにある。The purpose of this invention is to make it easy to check the terminator when a fire alarm system is completed, during maintenance and inspection, etc., so that it can be immediately determined whether the wiring is broken or the terminator is defective. It is in.
火災報知機の終端器として定電圧素子を使用した場合、
これが正常であるかどうかは定電圧素子に電流を流して
両端の電圧を測定することによって判る。When using a constant voltage element as a fire alarm terminator,
Whether this is normal or not can be determined by passing current through the constant voltage element and measuring the voltage across it.
しかし、この場合には定電圧素子のツエナー電圧より高
い電圧の電源が必要で、通常のテスターでは測定できな
い。However, in this case, a power supply with a voltage higher than the Zener voltage of the constant voltage element is required, and it cannot be measured with a normal tester.
したがって、終端器が定電圧素子である場合は短絡故障
であればテスターで判断できるが、開放故障であれば終
端器の故障の有無が判別できない。Therefore, if the terminator is a constant voltage element, a tester can determine if it is a short-circuit failure, but if it is an open failure, it cannot be determined whether there is a failure in the terminator.
本考案はかかる点に鑑みてなされたもので、以下実施例
により詳細に説明する。The present invention has been devised in view of this point, and will be described in detail below with reference to Examples.
第１図において、１は火災報知機の配線に接続する終端
器で、この終端器１を接続する試験端子２，２を設け、
第２図のように接続しておく。In Fig. 1, 1 is a terminator connected to the fire alarm wiring, and test terminals 2, 2 are provided to connect this terminator 1.
Connect as shown in Figure 2.
この場合、終端器１として定電圧素子の場合を示してい
る。In this case, a constant voltage element is used as the terminator 1.
３は直流電源で、終端器１のツエナー電圧より高い電圧
を有している。3 is a DC power supply, which has a voltage higher than the Zener voltage of the terminator 1.
４，５は発光素子で、第１図のように筐体１０に設ける
とともにそれぞれトランジスタ６，７を直列に接続し、
直流電源３に抵抗Ｒ１を介して接続しておく。4 and 5 are light emitting elements, which are provided in the housing 10 as shown in FIG. 1, and transistors 6 and 7 are connected in series, respectively.
It is connected to the DC power supply 3 via a resistor R1.
直流電源３には抵抗Ｒ２を介して終端器１を接続し、こ
の終端器１に直列に２組の分圧回路８，９を接続し、分
圧回路８をトランジスタ６のベースに接続するとともに
分圧回路９をトランジスタ７のベースに接続し、更に、
トランジスタ６のコレクタをトランジスタ７のベースに
接続しておく。A terminator 1 is connected to the DC power supply 3 via a resistor R2, two sets of voltage dividing circuits 8 and 9 are connected in series to this terminator 1, and the voltage dividing circuit 8 is connected to the base of the transistor 6. A voltage divider circuit 9 is connected to the base of the transistor 7, and further,
The collector of transistor 6 is connected to the base of transistor 7.
今、終端器１として定電圧素子を接続し、この終端器１
が正常な場合は、抵抗Ｒ２、終端器１を通って分圧回路
８，９に電流が流れ、トランジスタ７がオンして発光素
子５が点灯する。Now, connect a constant voltage element as terminator 1, and connect this terminator 1.
If it is normal, current flows through the resistor R2 and the terminator 1 to the voltage dividing circuits 8 and 9, the transistor 7 is turned on, and the light emitting element 5 is lit.
この場合、トランジスタ６はオンしないよう抵抗Ｒ３，
Ｒ４が設定されており、発光素子４は点灯しない。In this case, the resistor R3 is set so that the transistor 6 is not turned on.
R4 is set, and the light emitting element 4 does not light up.
つぎに、終端器１が短絡している場合は、分圧回路８に
かかる電圧が高くなってトランジスタ６がオンして発光
素子４が点灯し、トランジスタ６のオンによってトラン
ジスタ７がオフとなり、発光素子５は点灯しない。Next, if the terminator 1 is short-circuited, the voltage applied to the voltage divider circuit 8 becomes high and the transistor 6 is turned on, causing the light emitting element 4 to light up. Element 5 does not light up.
更に終端器１が断線している場合は、トランジスタ６，
７のいずれもオンしないため、発光素子４，５のいずれ
も点灯しない。Furthermore, if the terminator 1 is disconnected, the transistors 6,
Since neither of the light emitting elements 4 and 5 is turned on, neither of the light emitting elements 4 and 5 is turned on.
したがって、終端器１の正常、異常を簡単にチェックで
きる。Therefore, it is possible to easily check whether the terminator 1 is normal or abnormal.
叙上のように本考案は、終端器を接続する試験端子を設
け、終端器のツエナー電圧より高い電圧の直流電源に発
光素子とトランジスタの直列回路を２組並列に接続し、
前記終端器を介して接続された２組の分圧回路をトラン
ジスタのベースにそれぞれ接続するとともに一方のトラ
ンジスタのコレクタを他方のトランジスタのベースに接
続したから、火災報知機の竣工時、保守点検時に終端器
のチェックが簡単にでき、配線の断線か、終端器の不良
かをすぐに判別できるという効果を奏するものである。As mentioned above, the present invention provides a test terminal for connecting a terminator, connects two series circuits of a light emitting element and a transistor in parallel to a DC power supply with a voltage higher than the Zener voltage of the terminator,
Since the two sets of voltage divider circuits connected via the terminator are connected to the bases of the transistors, and the collector of one transistor is connected to the base of the other transistor, it is possible to This has the effect of making it easy to check the terminator and immediately determining whether the wiring is broken or the terminator is defective.
第１図は本考案火災報知機の終端器試験装置の一実施例
の斜視図、第２図は同上の回路図である。
１・・・終端器、２・・・試験端子、３・・・直流電源
、４・・・発光素子、５・・・発光素子、６・・・トラ
ンジスタ、７・・・トランジスタ、８・・・分圧回路、
９・・・分圧回路。FIG. 1 is a perspective view of an embodiment of the fire alarm terminal test device of the present invention, and FIG. 2 is a circuit diagram of the same. DESCRIPTION OF SYMBOLS 1... Termination device, 2... Test terminal, 3... DC power supply, 4... Light emitting element, 5... Light emitting element, 6... Transistor, 7... Transistor, 8...・Voltage dividing circuit,
9...Voltage dividing circuit.
Claims (1)
圧より高い電圧の直流電源に発光素子とトランジスタの
直列回路を２組並列に接続し、前記終端器を介して接続
された２組の分圧回路をトランジスタのベースにそれぞ
れ接続するとともに一方のトランジスタのコレクタを他
方のトランジスタのベースに接続して或る火災報知機の
終端器試験装置。A test terminal is provided to connect the terminator, two sets of series circuits of a light emitting element and a transistor are connected in parallel to a DC power source with a voltage higher than the Zener voltage of the terminator, and the two sets of series circuits connected via the terminator are tested. A terminal test device for a certain fire alarm system, in which a voltage circuit is connected to the base of each transistor, and the collector of one transistor is connected to the base of the other transistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5062879U JPS599355Y2 (en) | 1979-04-15 | 1979-04-15 | Fire alarm terminal test equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5062879U JPS599355Y2 (en) | 1979-04-15 | 1979-04-15 | Fire alarm terminal test equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS55150489U JPS55150489U (en) | 1980-10-29 |
| JPS599355Y2 true JPS599355Y2 (en) | 1984-03-23 |
Family
ID=28938459
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5062879U Expired JPS599355Y2 (en) | 1979-04-15 | 1979-04-15 | Fire alarm terminal test equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS599355Y2 (en) |
-
1979
- 1979-04-15 JP JP5062879U patent/JPS599355Y2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS55150489U (en) | 1980-10-29 |
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